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const { resolve } = require('path')
const t = require('tap')
const diff = require('../index.js')
const normalizePath = p => p
.replace(/\\+/g, '/')
.replace(/\r\n/g, '\n')
t.cleanSnapshot = (str) => normalizePath(str)
.replace(normalizePath(process.execPath), 'node')
const json = (obj) => `${JSON.stringify(obj, null, 2)}\n`
t.test('compare two diff specs', async t => {
const path = t.testdir({
a1: {
'package.json': json({
name: 'a',
version: '1.0.0',
}),
'index.js': 'module.exports =\n "a1"\n',
},
a2: {
'package.json': json({
name: 'a',
version: '2.0.0',
}),
'index.js': 'module.exports =\n "a2"\n',
},
})
const a = `file:${resolve(path, 'a1')}`
const b = `file:${resolve(path, 'a2')}`
t.resolveMatchSnapshot(diff([a, b], {}), 'should output expected diff')
})
t.test('using single arg', async t => {
await t.rejects(
diff(['abbrev@1.0.3']),
/libnpmdiff needs two arguments to compare/,
'should throw EDIFFARGS error'
)
})
t.test('too many args', async t => {
const args = ['abbrev@1.0.3', 'abbrev@1.0.4', 'abbrev@1.0.5']
await t.rejects(
diff(args),
/libnpmdiff needs two arguments to compare/,
'should output diff against cwd files'
)
})
t.test('folder in node_modules', async t => {
const path = t.testdir({
node_modules: {
a: {
'package.json': json({
name: 'a',
version: '1.0.0',
scripts: {
prepare: `${process.execPath} prepare.js`,
},
}),
'prepare.js': 'throw new Error("ERR")',
node_modules: {
b: {
'package.json': json({
name: 'b',
version: '2.0.0',
scripts: {
prepare: `${process.execPath} prepare.js`,
},
}),
'prepare.js': 'throw new Error("ERR")',
},
},
},
},
packages: {
a: {
'package.json': json({
name: 'a',
version: '1.0.1',
scripts: {
prepare: `${process.execPath} prepare.js`,
},
}),
'prepare.js': '',
},
b: {
'package.json': json({
name: 'b',
version: '2.0.1',
scripts: {
prepare: `${process.execPath} prepare.js`,
},
}),
'prepare.js': '',
},
},
'package.json': json({
name: 'my-project',
version: '1.0.0',
}),
})
t.test('top-level, absolute path', async t => {
t.resolveMatchSnapshot(diff([
`file:${resolve(path, 'node_modules/a')}`,
`file:${resolve(path, 'packages/a')}`,
], { where: path }), 'should output expected diff')
})
t.test('top-level, relative path', async t => {
const _cwd = process.cwd()
process.chdir(path)
t.teardown(() => {
process.chdir(_cwd)
})
t.resolveMatchSnapshot(diff([
'file:./node_modules/a',
'file:./packages/a',
], { where: path }), 'should output expected diff')
})
t.test('nested, absolute path', async t => {
t.resolveMatchSnapshot(diff([
`file:${resolve(path, 'node_modules/a/node_modules/b')}`,
`file:${resolve(path, 'packages/b')}`,
], { where: path}), 'should output expected diff')
})
t.test('nested, relative path', async t => {
const _cwd = process.cwd()
process.chdir(path)
t.teardown(() => {
process.chdir(_cwd)
})
t.resolveMatchSnapshot(diff([
'file:./node_modules/a/node_modules/b',
'file:./packages/b',
], { where: path }), 'should output expected diff')
})
})
|
